trilo trigger, like a familiar smell, would bring it all back. >> i would get very extreme stabbing sensations in my body. then, like, fixed visuals. like being, for instance, raped. >> mental breakdowns, four hospitalizations, and along the way, rachel tried almost every treatment in the book. >> tried emdr, rapid eye movement therapy. hypnosis, gestault, yell it out, scream it out. nothing worked. >> then she discovered an experime experiment run by a psychiatrist in charleston, south carolina. >> this is the place where we do the study. this is where we meet with people and do the sessions. >> intense psychotherapy, including eight-hour sessions after taking a capsule of mdma, ecstasy. listen closely. in this tape, you can hear rachel along with the doctor.